01-06-2013, 01:06 PM
Gsm based dc motor control
Gsm based dc.pptx (Size: 560.08 KB / Downloads: 60)
indroduction
The purpose of this project is to control the speed and direction of DC Motor using Microcontroller and GSM Modem with password protection. This uses a PWM(Pulse Width Modulation) technique to control the speed of motor from 0% to 100%.The speed of the motor is measured using contact-less speed measurement technique. Speed control is done using PWM (Pulse Width Modulation) method. User can send SMS messages to control the motor speed and direction.
Feature of project
1. Remote monitoring and controlling of DC motor.
2. Can be operated from anywhere in the world.
3. Reliable for industrial and domestic needs.
The project focuses on the following areas:
1. Characteristics of GSM modem.
2. GSM modem and microcontroller interface.
3. Embedded C programming.
4. Hardware and PCB design.
5. Serial Communication with GSM modem.
GSM MODULE
A GSM modem attached to the control unit handles automatic SMS sending and receiving process. As this monitoring and controlling can be done by any mobile phone, we provided a security feature by implementing password-based protection. User has to send the password along with the commands to be controlled.GSM Modem connected to microcontroller unit is used to control the motor and know the motor live speed. Microcontroller automatically reads the SMS messages stored in the SIM card and takes necessary action like speed control, direction control etc
What is GSM?
GSM modem with RS 232 connector: it is the most popular standerd for phone in the world
It is Yuropean standerd for digital cellular system that include enhancement feature.
It uses TDMA technology with 900/1800
We are using sim 300 ,a gsm modem from simcom